Mirror Neurons, Morality and Video games

[luckyme]

this has to be a hot topic in several fields

"Source of human empathy found in brain"

the main thrust seems to be that they identified specific brain cells that do mirror the action being watched.
Morality, religion, politics and even the harmful effects of violent video games are touched by our increasing knowledge of this aspect of how our mind works.

Does anyone hear has a good grasp of this or a some good sources?
my understanding is that we engage the same cells whether witnessing or actually doing ... we do 'walk a mile in their shoes' with some sort of suppression mechanism that prevents a total immersion in the others skin ( we don't actually take the physical steps as we walk that mile).

luckyme, luckywe(?)